extremely urgent please, why a fuse is used before
voltmeter but not with a ammeter connected to a CT(current
transformer),thanks in anticipation.
Answer Posted / syed shoeb ullah hussaini
look man ... In c.t load is
connected to the primary
winding and ammeter is
connected to secondary
winding hence there no fuse
in c.t .... Similary there no fuse
in potential transformer as
the voltmeter is connected on
secondary side with closed
loop of secondary and
winding .... P.t is step down
transformer hence in this also
no fuse is used .... Its was a
trick question to measure
your knowledge
| Is This Answer Correct ? | 5 Yes | 2 No |
Post New Answer View All Answers
what is stper motor
what is the difference between earthing and unearth
How to decide DO set rating of Transformer?
why three phase capacitor takes unbalanced current in capacitor bank?
The series field winding has low resistance while the shunt field winding has high resistance. Why?
If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?
Why is tan-delta test and capacitor measurement done on alternator?
DIFFERENCE BETWEEN NORMAL TRAFO AND THRISTER TRAFO?
Shall I use 40A semiconductor Fuses in 32 A SFU ? Frame size is same. What Happen if Fuses burn on SFU?
Differentiate between digital phase converter and ordinary phase converter.
we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?
what are factors comes under relay setting (distance relay 7sa52) under OPEN DELTA VTs connection??
What is the reason behind current flow(20 A) in amain earth cable of an SMDB? Is cuurent flow(45A etc) through a neutral cable acceptable?
What is ST and specify its range of voltage.
HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.